Most huge game releases have gone hand-in-hand with some extremely expensive marketing pushes. Web advertisements, mass emails, promotional goodies flying everywhere, and of course commercials are all part of the mix. A lot of the time it's all in-game footage, with maybe a few cheeky nerd jokes tossed in there. But Bungie has always done something different, for which they'll always be remembered. Looking back at Halo 3's Believe campaign, it's not hard to wonder why the franchise has such a strong following. It was staggering, beautifully crafted, and leagues beyond the typical gaming advertisements that had come before it.